Respiratory mask seal and mask using same

a technology of respirator and mask, applied in respirator, breathing mask, breathing protection, etc., can solve the problems of patient discomfort, gel cushion is sometimes perceived as bulky or heavy, and reduce the resonance effect, reduce the geometry of the cushion, and complicate the manufacturing process.

Active Publication Date: 2006-05-11
PHILIPS RS NORTH AMERICA LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0019] Due to the low modulus of the thermoplastic gel material, the seal may require additional support around the perimeter on the sidewall to stiffen the support. This reinforcement can be achieved by a prominent thick side section or by an over molded supporting ring. The thermoplastic gel material makes advance processing techniques, such as two-shot molding and over-molding possible.
[0020] One of the side effects of the low modulus of the thermoplastic gel material is that the thin section may have a resonance effect in respond to any pressure differential. To avoid this result, the present invention contemplates providing sections of the seal with differentiated wall thickness in specific pattern to diminish or reduce the

Problems solved by technology

Commonly, in conventional mask configurations, a good mask-to-face seal has been attained in many instances only with considerable discomfort to the patient.
This

Method used

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  • Respiratory mask seal and mask using same
  • Respiratory mask seal and mask using same
  • Respiratory mask seal and mask using same

Examples

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Embodiment Construction

[0054]FIGS. 1-4 illustrate an exemplary embodiment of a respiratory mask 10 according to the principles of the present invention. Respiratory mask 10 functions as a patient interface device that communicates a flow of breathing gas between the patient's airway and a pressure / flow generating device 12, such as a ventilator, CPAP device, or variable pressure device. Examples of a pressure support system that generates a variable pressure include an auto-titrating device, proportional assist ventilation (PAV) device, proportional positive airway pressure (PPAP) device, C-Flex device, Bi-Flex device, or a BiPAP® device manufactured and distributed by Respironics, Inc. of Murrysville, Pa., in which the pressure provided to the patient varies with the patient's respiratory cycle so that a higher pressure is delivered during inspiration than during expiration, or other pressure support devices. The pressure generating device is shown schematically in FIG. 2. It is to be understood that the...

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Abstract

A seal and a mask using a seal that includes a first end portion adapted to be coupled to a seal support, a second end portion adapted for sealing engagement with a face of a user, and a sidewall extending between the first end portion and the second end portion. The first end portion, second end portion, sidewall, or any combination thereof is formed from an elastomeric material having an elongation of at least 1000%. The seal preferably formed from a unitary piece of elastomeric material.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority under 35 U.S.C. § 119(e) from provisional U.S. patent application No. 60 / 625,469, filed Nov. 5, 2004, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a flexible, elastic seal adapted to contact a patient's face and create a sealed interface with an airway of a patient, and to a respiratory mask using such a seal. [0004] 2. Description of the Related Art [0005] A variety of respiratory masks are known that have flexible seals and that cover the nose, mouth, or both of a human patient. The seal on a respiratory mask, which is also commonly referred to as a cushion, is intended to create a seal against the patient's face. Because of the sealing effect that is created, gases can be provided at a positive pressure within the mask for delivery to the airway of the patient. [0006] The uses for such ma...

Claims

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Application Information

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IPC IPC(8): A62B18/02A62B18/08
CPCA61M16/06A61M16/0683A61M16/0616
Inventor HO, PETER CHI FAIBUSCH, LANCESCARBERRY, EUGENE N.EATON, JASON P.
Owner PHILIPS RS NORTH AMERICA LLC
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